package com.homework.ch0123;

public class Test1 {
    public static void main(String[] args) {
        System.out.println("What's wrong with this program?");
    }
}

// 移除 public 修饰符
class TestAnother1 {
    public static void main(String[] args) {
        System.out.println("What's wrong with this program?");
    }
}